Question

The percentage of functional haemoglobin combined with oxygen is expressed as ______

(a) (concentration of oxyhaemoglobin/{concentration of oxyhaemoglobin+ concentration of deoxyhaemoglobin})*100

(b) (concentration of deoxyhaemoglobin/{concentration of oxyhaemoglobin+ concentration of deoxyhaemoglobin})*100

(c) ({concentration of oxyhaemoglobin+ concentration of deoxyhaemoglobin}/concentration of deoxyhaemoglobin)*100

(d) ({concentration of oxyhaemoglobin+ concentration of deoxyhaemoglobin}/concentration of oxyhaemoglobin)*100

This question was posed to me in a national level competition.

The question is from Digital Stethoscope in section Biomedical Recorders of Biomedical Instrumentation

Answer 1

The correct option is (a) (concentration of oxyhaemoglobin/{concentration of oxyhaemoglobin+ concentration of deoxyhaemoglobin})*100

For explanation: The instrument is designed to measure the percentage of functional hemoglobin combined with oxygen. This can be expressed as:

where CO is the concentration of oxyhemoglobin and CR is the concentration of deoxyhemoglobin.